* Step 1: Bounds WORST_CASE(?,O(n^1))
    + Considered Problem:
        - Strict TRS:
            U101(mark(X1),X2,X3) -> mark(U101(X1,X2,X3))
            U101(ok(X1),ok(X2),ok(X3)) -> ok(U101(X1,X2,X3))
            U102(mark(X1),X2) -> mark(U102(X1,X2))
            U102(ok(X1),ok(X2)) -> ok(U102(X1,X2))
            U103(mark(X)) -> mark(U103(X))
            U103(ok(X)) -> ok(U103(X))
            U11(mark(X1),X2,X3) -> mark(U11(X1,X2,X3))
            U11(ok(X1),ok(X2),ok(X3)) -> ok(U11(X1,X2,X3))
            U111(mark(X1),X2) -> mark(U111(X1,X2))
            U111(ok(X1),ok(X2)) -> ok(U111(X1,X2))
            U112(mark(X)) -> mark(U112(X))
            U112(ok(X)) -> ok(U112(X))
            U121(mark(X1),X2) -> mark(U121(X1,X2))
            U121(ok(X1),ok(X2)) -> ok(U121(X1,X2))
            U122(mark(X)) -> mark(U122(X))
            U122(ok(X)) -> ok(U122(X))
            U131(mark(X1),X2,X3) -> mark(U131(X1,X2,X3))
            U131(ok(X1),ok(X2),ok(X3)) -> ok(U131(X1,X2,X3))
            U132(mark(X1),X2) -> mark(U132(X1,X2))
            U132(ok(X1),ok(X2)) -> ok(U132(X1,X2))
            U133(mark(X)) -> mark(U133(X))
            U133(ok(X)) -> ok(U133(X))
            U141(mark(X1),X2,X3) -> mark(U141(X1,X2,X3))
            U141(ok(X1),ok(X2),ok(X3)) -> ok(U141(X1,X2,X3))
            U142(mark(X1),X2) -> mark(U142(X1,X2))
            U142(ok(X1),ok(X2)) -> ok(U142(X1,X2))
            U143(mark(X)) -> mark(U143(X))
            U143(ok(X)) -> ok(U143(X))
            U151(mark(X1),X2,X3) -> mark(U151(X1,X2,X3))
            U151(ok(X1),ok(X2),ok(X3)) -> ok(U151(X1,X2,X3))
            U152(mark(X1),X2) -> mark(U152(X1,X2))
            U152(ok(X1),ok(X2)) -> ok(U152(X1,X2))
            U153(mark(X)) -> mark(U153(X))
            U153(ok(X)) -> ok(U153(X))
            U161(mark(X1),X2) -> mark(U161(X1,X2))
            U161(ok(X1),ok(X2)) -> ok(U161(X1,X2))
            U171(mark(X1),X2,X3) -> mark(U171(X1,X2,X3))
            U171(ok(X1),ok(X2),ok(X3)) -> ok(U171(X1,X2,X3))
            U181(mark(X1),X2) -> mark(U181(X1,X2))
            U181(ok(X1),ok(X2)) -> ok(U181(X1,X2))
            U191(mark(X1),X2) -> mark(U191(X1,X2))
            U191(ok(X1),ok(X2)) -> ok(U191(X1,X2))
            U201(mark(X1),X2,X3,X4) -> mark(U201(X1,X2,X3,X4))
            U201(ok(X1),ok(X2),ok(X3),ok(X4)) -> ok(U201(X1,X2,X3,X4))
            U202(mark(X1),X2) -> mark(U202(X1,X2))
            U202(ok(X1),ok(X2)) -> ok(U202(X1,X2))
            U21(mark(X1),X2) -> mark(U21(X1,X2))
            U21(ok(X1),ok(X2)) -> ok(U21(X1,X2))
            U211(mark(X1),X2) -> mark(U211(X1,X2))
            U211(ok(X1),ok(X2)) -> ok(U211(X1,X2))
            U221(mark(X1),X2,X3) -> mark(U221(X1,X2,X3))
            U221(ok(X1),ok(X2),ok(X3)) -> ok(U221(X1,X2,X3))
            U31(mark(X1),X2) -> mark(U31(X1,X2))
            U31(ok(X1),ok(X2)) -> ok(U31(X1,X2))
            U41(mark(X1),X2,X3) -> mark(U41(X1,X2,X3))
            U41(ok(X1),ok(X2),ok(X3)) -> ok(U41(X1,X2,X3))
            U42(mark(X1),X2) -> mark(U42(X1,X2))
            U42(ok(X1),ok(X2)) -> ok(U42(X1,X2))
            U43(mark(X)) -> mark(U43(X))
            U43(ok(X)) -> ok(U43(X))
            U51(mark(X1),X2,X3) -> mark(U51(X1,X2,X3))
            U51(ok(X1),ok(X2),ok(X3)) -> ok(U51(X1,X2,X3))
            U52(mark(X1),X2) -> mark(U52(X1,X2))
            U52(ok(X1),ok(X2)) -> ok(U52(X1,X2))
            U53(mark(X)) -> mark(U53(X))
            U53(ok(X)) -> ok(U53(X))
            U61(mark(X1),X2) -> mark(U61(X1,X2))
            U61(ok(X1),ok(X2)) -> ok(U61(X1,X2))
            U62(mark(X)) -> mark(U62(X))
            U62(ok(X)) -> ok(U62(X))
            U71(mark(X1),X2) -> mark(U71(X1,X2))
            U71(ok(X1),ok(X2)) -> ok(U71(X1,X2))
            U72(mark(X)) -> mark(U72(X))
            U72(ok(X)) -> ok(U72(X))
            U81(mark(X1),X2) -> mark(U81(X1,X2))
            U81(ok(X1),ok(X2)) -> ok(U81(X1,X2))
            U82(mark(X)) -> mark(U82(X))
            U82(ok(X)) -> ok(U82(X))
            U91(mark(X1),X2) -> mark(U91(X1,X2))
            U91(ok(X1),ok(X2)) -> ok(U91(X1,X2))
            U92(mark(X)) -> mark(U92(X))
            U92(ok(X)) -> ok(U92(X))
            afterNth(X1,mark(X2)) -> mark(afterNth(X1,X2))
            afterNth(mark(X1),X2) -> mark(afterNth(X1,X2))
            afterNth(ok(X1),ok(X2)) -> ok(afterNth(X1,X2))
            and(mark(X1),X2) -> mark(and(X1,X2))
            and(ok(X1),ok(X2)) -> ok(and(X1,X2))
            cons(mark(X1),X2) -> mark(cons(X1,X2))
            cons(ok(X1),ok(X2)) -> ok(cons(X1,X2))
            fst(mark(X)) -> mark(fst(X))
            fst(ok(X)) -> ok(fst(X))
            head(mark(X)) -> mark(head(X))
            head(ok(X)) -> ok(head(X))
            isLNat(ok(X)) -> ok(isLNat(X))
            isLNatKind(ok(X)) -> ok(isLNatKind(X))
            isNatural(ok(X)) -> ok(isNatural(X))
            isNaturalKind(ok(X)) -> ok(isNaturalKind(X))
            isPLNat(ok(X)) -> ok(isPLNat(X))
            isPLNatKind(ok(X)) -> ok(isPLNatKind(X))
            natsFrom(mark(X)) -> mark(natsFrom(X))
            natsFrom(ok(X)) -> ok(natsFrom(X))
            pair(X1,mark(X2)) -> mark(pair(X1,X2))
            pair(mark(X1),X2) -> mark(pair(X1,X2))
            pair(ok(X1),ok(X2)) -> ok(pair(X1,X2))
            proper(0()) -> ok(0())
            proper(nil()) -> ok(nil())
            proper(tt()) -> ok(tt())
            s(mark(X)) -> mark(s(X))
            s(ok(X)) -> ok(s(X))
            sel(X1,mark(X2)) -> mark(sel(X1,X2))
            sel(mark(X1),X2) -> mark(sel(X1,X2))
            sel(ok(X1),ok(X2)) -> ok(sel(X1,X2))
            snd(mark(X)) -> mark(snd(X))
            snd(ok(X)) -> ok(snd(X))
            splitAt(X1,mark(X2)) -> mark(splitAt(X1,X2))
            splitAt(mark(X1),X2) -> mark(splitAt(X1,X2))
            splitAt(ok(X1),ok(X2)) -> ok(splitAt(X1,X2))
            tail(mark(X)) -> mark(tail(X))
            tail(ok(X)) -> ok(tail(X))
            take(X1,mark(X2)) -> mark(take(X1,X2))
            take(mark(X1),X2) -> mark(take(X1,X2))
            take(ok(X1),ok(X2)) -> ok(take(X1,X2))
            top(mark(X)) -> top(proper(X))
            top(ok(X)) -> top(active(X))
        - Signature:
            {U101/3,U102/2,U103/1,U11/3,U111/2,U112/1,U121/2,U122/1,U131/3,U132/2,U133/1,U141/3,U142/2,U143/1,U151/3
            ,U152/2,U153/1,U161/2,U171/3,U181/2,U191/2,U201/4,U202/2,U21/2,U211/2,U221/3,U31/2,U41/3,U42/2,U43/1,U51/3
            ,U52/2,U53/1,U61/2,U62/1,U71/2,U72/1,U81/2,U82/1,U91/2,U92/1,afterNth/2,and/2,cons/2,fst/1,head/1,isLNat/1
            ,isLNatKind/1,isNatural/1,isNaturalKind/1,isPLNat/1,isPLNatKind/1,natsFrom/1,pair/2,proper/1,s/1,sel/2,snd/1
            ,splitAt/2,tail/1,take/2,top/1} / {0/0,active/1,mark/1,nil/0,ok/1,tt/0}
        - Obligation:
            innermost runtime complexity wrt. defined symbols {U101,U102,U103,U11,U111,U112,U121,U122,U131,U132,U133
            ,U141,U142,U143,U151,U152,U153,U161,U171,U181,U191,U201,U202,U21,U211,U221,U31,U41,U42,U43,U51,U52,U53,U61
            ,U62,U71,U72,U81,U82,U91,U92,afterNth,and,cons,fst,head,isLNat,isLNatKind,isNatural,isNaturalKind,isPLNat
            ,isPLNatKind,natsFrom,pair,proper,s,sel,snd,splitAt,tail,take,top} and constructors {0,active,mark,nil,ok
            ,tt}
    + Applied Processor:
        Bounds {initialAutomaton = minimal, enrichment = match}
    + Details:
        The problem is match-bounded by 2.
        The enriched problem is compatible with follwoing automaton.
          0_0() -> 2
          0_1() -> 3
          U101_0(2,2,2) -> 1
          U101_1(2,2,2) -> 3
          U102_0(2,2) -> 1
          U102_1(2,2) -> 3
          U103_0(2) -> 1
          U103_1(2) -> 3
          U11_0(2,2,2) -> 1
          U11_1(2,2,2) -> 3
          U111_0(2,2) -> 1
          U111_1(2,2) -> 3
          U112_0(2) -> 1
          U112_1(2) -> 3
          U121_0(2,2) -> 1
          U121_1(2,2) -> 3
          U122_0(2) -> 1
          U122_1(2) -> 3
          U131_0(2,2,2) -> 1
          U131_1(2,2,2) -> 3
          U132_0(2,2) -> 1
          U132_1(2,2) -> 3
          U133_0(2) -> 1
          U133_1(2) -> 3
          U141_0(2,2,2) -> 1
          U141_1(2,2,2) -> 3
          U142_0(2,2) -> 1
          U142_1(2,2) -> 3
          U143_0(2) -> 1
          U143_1(2) -> 3
          U151_0(2,2,2) -> 1
          U151_1(2,2,2) -> 3
          U152_0(2,2) -> 1
          U152_1(2,2) -> 3
          U153_0(2) -> 1
          U153_1(2) -> 3
          U161_0(2,2) -> 1
          U161_1(2,2) -> 3
          U171_0(2,2,2) -> 1
          U171_1(2,2,2) -> 3
          U181_0(2,2) -> 1
          U181_1(2,2) -> 3
          U191_0(2,2) -> 1
          U191_1(2,2) -> 3
          U201_0(2,2,2,2) -> 1
          U201_1(2,2,2,2) -> 3
          U202_0(2,2) -> 1
          U202_1(2,2) -> 3
          U21_0(2,2) -> 1
          U21_1(2,2) -> 3
          U211_0(2,2) -> 1
          U211_1(2,2) -> 3
          U221_0(2,2,2) -> 1
          U221_1(2,2,2) -> 3
          U31_0(2,2) -> 1
          U31_1(2,2) -> 3
          U41_0(2,2,2) -> 1
          U41_1(2,2,2) -> 3
          U42_0(2,2) -> 1
          U42_1(2,2) -> 3
          U43_0(2) -> 1
          U43_1(2) -> 3
          U51_0(2,2,2) -> 1
          U51_1(2,2,2) -> 3
          U52_0(2,2) -> 1
          U52_1(2,2) -> 3
          U53_0(2) -> 1
          U53_1(2) -> 3
          U61_0(2,2) -> 1
          U61_1(2,2) -> 3
          U62_0(2) -> 1
          U62_1(2) -> 3
          U71_0(2,2) -> 1
          U71_1(2,2) -> 3
          U72_0(2) -> 1
          U72_1(2) -> 3
          U81_0(2,2) -> 1
          U81_1(2,2) -> 3
          U82_0(2) -> 1
          U82_1(2) -> 3
          U91_0(2,2) -> 1
          U91_1(2,2) -> 3
          U92_0(2) -> 1
          U92_1(2) -> 3
          active_0(2) -> 2
          active_1(2) -> 4
          active_2(3) -> 5
          afterNth_0(2,2) -> 1
          afterNth_1(2,2) -> 3
          and_0(2,2) -> 1
          and_1(2,2) -> 3
          cons_0(2,2) -> 1
          cons_1(2,2) -> 3
          fst_0(2) -> 1
          fst_1(2) -> 3
          head_0(2) -> 1
          head_1(2) -> 3
          isLNat_0(2) -> 1
          isLNat_1(2) -> 3
          isLNatKind_0(2) -> 1
          isLNatKind_1(2) -> 3
          isNatural_0(2) -> 1
          isNatural_1(2) -> 3
          isNaturalKind_0(2) -> 1
          isNaturalKind_1(2) -> 3
          isPLNat_0(2) -> 1
          isPLNat_1(2) -> 3
          isPLNatKind_0(2) -> 1
          isPLNatKind_1(2) -> 3
          mark_0(2) -> 2
          mark_1(3) -> 1
          mark_1(3) -> 3
          natsFrom_0(2) -> 1
          natsFrom_1(2) -> 3
          nil_0() -> 2
          nil_1() -> 3
          ok_0(2) -> 2
          ok_1(3) -> 1
          ok_1(3) -> 3
          ok_1(3) -> 4
          pair_0(2,2) -> 1
          pair_1(2,2) -> 3
          proper_0(2) -> 1
          proper_1(2) -> 4
          s_0(2) -> 1
          s_1(2) -> 3
          sel_0(2,2) -> 1
          sel_1(2,2) -> 3
          snd_0(2) -> 1
          snd_1(2) -> 3
          splitAt_0(2,2) -> 1
          splitAt_1(2,2) -> 3
          tail_0(2) -> 1
          tail_1(2) -> 3
          take_0(2,2) -> 1
          take_1(2,2) -> 3
          top_0(2) -> 1
          top_1(4) -> 1
          top_2(5) -> 1
          tt_0() -> 2
          tt_1() -> 3
* Step 2: EmptyProcessor WORST_CASE(?,O(1))
    + Considered Problem:
        - Weak TRS:
            U101(mark(X1),X2,X3) -> mark(U101(X1,X2,X3))
            U101(ok(X1),ok(X2),ok(X3)) -> ok(U101(X1,X2,X3))
            U102(mark(X1),X2) -> mark(U102(X1,X2))
            U102(ok(X1),ok(X2)) -> ok(U102(X1,X2))
            U103(mark(X)) -> mark(U103(X))
            U103(ok(X)) -> ok(U103(X))
            U11(mark(X1),X2,X3) -> mark(U11(X1,X2,X3))
            U11(ok(X1),ok(X2),ok(X3)) -> ok(U11(X1,X2,X3))
            U111(mark(X1),X2) -> mark(U111(X1,X2))
            U111(ok(X1),ok(X2)) -> ok(U111(X1,X2))
            U112(mark(X)) -> mark(U112(X))
            U112(ok(X)) -> ok(U112(X))
            U121(mark(X1),X2) -> mark(U121(X1,X2))
            U121(ok(X1),ok(X2)) -> ok(U121(X1,X2))
            U122(mark(X)) -> mark(U122(X))
            U122(ok(X)) -> ok(U122(X))
            U131(mark(X1),X2,X3) -> mark(U131(X1,X2,X3))
            U131(ok(X1),ok(X2),ok(X3)) -> ok(U131(X1,X2,X3))
            U132(mark(X1),X2) -> mark(U132(X1,X2))
            U132(ok(X1),ok(X2)) -> ok(U132(X1,X2))
            U133(mark(X)) -> mark(U133(X))
            U133(ok(X)) -> ok(U133(X))
            U141(mark(X1),X2,X3) -> mark(U141(X1,X2,X3))
            U141(ok(X1),ok(X2),ok(X3)) -> ok(U141(X1,X2,X3))
            U142(mark(X1),X2) -> mark(U142(X1,X2))
            U142(ok(X1),ok(X2)) -> ok(U142(X1,X2))
            U143(mark(X)) -> mark(U143(X))
            U143(ok(X)) -> ok(U143(X))
            U151(mark(X1),X2,X3) -> mark(U151(X1,X2,X3))
            U151(ok(X1),ok(X2),ok(X3)) -> ok(U151(X1,X2,X3))
            U152(mark(X1),X2) -> mark(U152(X1,X2))
            U152(ok(X1),ok(X2)) -> ok(U152(X1,X2))
            U153(mark(X)) -> mark(U153(X))
            U153(ok(X)) -> ok(U153(X))
            U161(mark(X1),X2) -> mark(U161(X1,X2))
            U161(ok(X1),ok(X2)) -> ok(U161(X1,X2))
            U171(mark(X1),X2,X3) -> mark(U171(X1,X2,X3))
            U171(ok(X1),ok(X2),ok(X3)) -> ok(U171(X1,X2,X3))
            U181(mark(X1),X2) -> mark(U181(X1,X2))
            U181(ok(X1),ok(X2)) -> ok(U181(X1,X2))
            U191(mark(X1),X2) -> mark(U191(X1,X2))
            U191(ok(X1),ok(X2)) -> ok(U191(X1,X2))
            U201(mark(X1),X2,X3,X4) -> mark(U201(X1,X2,X3,X4))
            U201(ok(X1),ok(X2),ok(X3),ok(X4)) -> ok(U201(X1,X2,X3,X4))
            U202(mark(X1),X2) -> mark(U202(X1,X2))
            U202(ok(X1),ok(X2)) -> ok(U202(X1,X2))
            U21(mark(X1),X2) -> mark(U21(X1,X2))
            U21(ok(X1),ok(X2)) -> ok(U21(X1,X2))
            U211(mark(X1),X2) -> mark(U211(X1,X2))
            U211(ok(X1),ok(X2)) -> ok(U211(X1,X2))
            U221(mark(X1),X2,X3) -> mark(U221(X1,X2,X3))
            U221(ok(X1),ok(X2),ok(X3)) -> ok(U221(X1,X2,X3))
            U31(mark(X1),X2) -> mark(U31(X1,X2))
            U31(ok(X1),ok(X2)) -> ok(U31(X1,X2))
            U41(mark(X1),X2,X3) -> mark(U41(X1,X2,X3))
            U41(ok(X1),ok(X2),ok(X3)) -> ok(U41(X1,X2,X3))
            U42(mark(X1),X2) -> mark(U42(X1,X2))
            U42(ok(X1),ok(X2)) -> ok(U42(X1,X2))
            U43(mark(X)) -> mark(U43(X))
            U43(ok(X)) -> ok(U43(X))
            U51(mark(X1),X2,X3) -> mark(U51(X1,X2,X3))
            U51(ok(X1),ok(X2),ok(X3)) -> ok(U51(X1,X2,X3))
            U52(mark(X1),X2) -> mark(U52(X1,X2))
            U52(ok(X1),ok(X2)) -> ok(U52(X1,X2))
            U53(mark(X)) -> mark(U53(X))
            U53(ok(X)) -> ok(U53(X))
            U61(mark(X1),X2) -> mark(U61(X1,X2))
            U61(ok(X1),ok(X2)) -> ok(U61(X1,X2))
            U62(mark(X)) -> mark(U62(X))
            U62(ok(X)) -> ok(U62(X))
            U71(mark(X1),X2) -> mark(U71(X1,X2))
            U71(ok(X1),ok(X2)) -> ok(U71(X1,X2))
            U72(mark(X)) -> mark(U72(X))
            U72(ok(X)) -> ok(U72(X))
            U81(mark(X1),X2) -> mark(U81(X1,X2))
            U81(ok(X1),ok(X2)) -> ok(U81(X1,X2))
            U82(mark(X)) -> mark(U82(X))
            U82(ok(X)) -> ok(U82(X))
            U91(mark(X1),X2) -> mark(U91(X1,X2))
            U91(ok(X1),ok(X2)) -> ok(U91(X1,X2))
            U92(mark(X)) -> mark(U92(X))
            U92(ok(X)) -> ok(U92(X))
            afterNth(X1,mark(X2)) -> mark(afterNth(X1,X2))
            afterNth(mark(X1),X2) -> mark(afterNth(X1,X2))
            afterNth(ok(X1),ok(X2)) -> ok(afterNth(X1,X2))
            and(mark(X1),X2) -> mark(and(X1,X2))
            and(ok(X1),ok(X2)) -> ok(and(X1,X2))
            cons(mark(X1),X2) -> mark(cons(X1,X2))
            cons(ok(X1),ok(X2)) -> ok(cons(X1,X2))
            fst(mark(X)) -> mark(fst(X))
            fst(ok(X)) -> ok(fst(X))
            head(mark(X)) -> mark(head(X))
            head(ok(X)) -> ok(head(X))
            isLNat(ok(X)) -> ok(isLNat(X))
            isLNatKind(ok(X)) -> ok(isLNatKind(X))
            isNatural(ok(X)) -> ok(isNatural(X))
            isNaturalKind(ok(X)) -> ok(isNaturalKind(X))
            isPLNat(ok(X)) -> ok(isPLNat(X))
            isPLNatKind(ok(X)) -> ok(isPLNatKind(X))
            natsFrom(mark(X)) -> mark(natsFrom(X))
            natsFrom(ok(X)) -> ok(natsFrom(X))
            pair(X1,mark(X2)) -> mark(pair(X1,X2))
            pair(mark(X1),X2) -> mark(pair(X1,X2))
            pair(ok(X1),ok(X2)) -> ok(pair(X1,X2))
            proper(0()) -> ok(0())
            proper(nil()) -> ok(nil())
            proper(tt()) -> ok(tt())
            s(mark(X)) -> mark(s(X))
            s(ok(X)) -> ok(s(X))
            sel(X1,mark(X2)) -> mark(sel(X1,X2))
            sel(mark(X1),X2) -> mark(sel(X1,X2))
            sel(ok(X1),ok(X2)) -> ok(sel(X1,X2))
            snd(mark(X)) -> mark(snd(X))
            snd(ok(X)) -> ok(snd(X))
            splitAt(X1,mark(X2)) -> mark(splitAt(X1,X2))
            splitAt(mark(X1),X2) -> mark(splitAt(X1,X2))
            splitAt(ok(X1),ok(X2)) -> ok(splitAt(X1,X2))
            tail(mark(X)) -> mark(tail(X))
            tail(ok(X)) -> ok(tail(X))
            take(X1,mark(X2)) -> mark(take(X1,X2))
            take(mark(X1),X2) -> mark(take(X1,X2))
            take(ok(X1),ok(X2)) -> ok(take(X1,X2))
            top(mark(X)) -> top(proper(X))
            top(ok(X)) -> top(active(X))
        - Signature:
            {U101/3,U102/2,U103/1,U11/3,U111/2,U112/1,U121/2,U122/1,U131/3,U132/2,U133/1,U141/3,U142/2,U143/1,U151/3
            ,U152/2,U153/1,U161/2,U171/3,U181/2,U191/2,U201/4,U202/2,U21/2,U211/2,U221/3,U31/2,U41/3,U42/2,U43/1,U51/3
            ,U52/2,U53/1,U61/2,U62/1,U71/2,U72/1,U81/2,U82/1,U91/2,U92/1,afterNth/2,and/2,cons/2,fst/1,head/1,isLNat/1
            ,isLNatKind/1,isNatural/1,isNaturalKind/1,isPLNat/1,isPLNatKind/1,natsFrom/1,pair/2,proper/1,s/1,sel/2,snd/1
            ,splitAt/2,tail/1,take/2,top/1} / {0/0,active/1,mark/1,nil/0,ok/1,tt/0}
        - Obligation:
            innermost runtime complexity wrt. defined symbols {U101,U102,U103,U11,U111,U112,U121,U122,U131,U132,U133
            ,U141,U142,U143,U151,U152,U153,U161,U171,U181,U191,U201,U202,U21,U211,U221,U31,U41,U42,U43,U51,U52,U53,U61
            ,U62,U71,U72,U81,U82,U91,U92,afterNth,and,cons,fst,head,isLNat,isLNatKind,isNatural,isNaturalKind,isPLNat
            ,isPLNatKind,natsFrom,pair,proper,s,sel,snd,splitAt,tail,take,top} and constructors {0,active,mark,nil,ok
            ,tt}
    + Applied Processor:
        EmptyProcessor
    + Details:
        The problem is already closed. The intended complexity is O(1).

WORST_CASE(?,O(n^1))